Tag: "functional" at biology news

...use it represents a part of the anatomy where many functional changes were taking place. "It's a mosaic of primitive fish and derived amphibian," said Shubin, lead author of the paper. This integral piece of the evolutionary puzzle not only shares features with primitive fish fins, but also has characteristics ...

...s suggest that these leptin-induced structural and functional changes are responsible for changes in the animal's behavior, too. Six hours after administering leptin to obese mice, changes could be seen in their synaptic connections. Forty-eight hours later, they were eating less and at 12 days the mice had lo...

...ing research in the area of time-dependent density functional theory. Filipp Furche studied chemistry at the Universities of Freiburg and Karlsruhe and completed his doctorate in theoretical chemistry at the University of Karlsruhe under Professor Reinhard Ahlrichs in 2002. After a year of postdoctoral study un...

... Miniaturization using nanotechnology yields many functional and economical benefits because of the reduction of a necessary sample size, the decrease in reagent consumption and the lower costs of mass production. However, scientists cannot sacrifice results to create alternatives. "Yes, the idea behind ...

...own function) that it takes up more space than the functional parts. Much of this junk consists of "introns," which appear as interruptions plopped down in the middle of genes. Discovered in the 1970s, introns mystify scientists but are readily accounted for by cells: when the cellular machinery transcribes a g...

...ional Institutes of Health," says Garkavtsev. "Its functional role in the prevention of tumor progression had not been investigated. When we found that malignant gliomas have strikingly lower levels of ING4 and knowing that ING4 regulates angiogenesis, this sparked interest toward potential targets that were in...

...mmary glands of mice. As a result, the mice formed functional breasts that are capable of producing human breast...orate human epithelial cells. The mice soon formed functional human mammary glands, and when these mice became pregnant, the engrafted cells produced human breast...

...s interesting and raises questions about potential functional differences between the two proteins," said Zoghbi. "Currently about 15 % of patients with a clinical diagnosis of RTT are testing negative for mutations in the MECP2 gene. This development may help to further identify mutations in exon 1. Incorporat...

... frequently ineffective against tumors that lack a functional programmed cell death mechanism. Such tumors are said to be chemotherapy-resistant. The evasion of treatment-induced programmed cell death by chemotherapy-resistant tumors has been a major impediment to successful therapeutic outcomes for human cance...

... receptor and transmitter changes, may explain the functional changes and cognitive deficits that precede more severe structural neuronal changes." For this study, researchers recruited two groups of males from the University of Ulm: 19 head- and neck-tumour patients, representative of heavy drinkers according ...

...red IQ scores and difficulties with learning basic functional and academic skills. The arousal difficulties may result in behavioral disturbances and meltdowns from being over-aroused and not being able to appropriately calm down when needed." These findings also help illuminate a somewhat controversial area...

...successfully induced the growth of new networks of functional blood vessels in mice. In the March 11 issue of Nature, the team from the Steele Laboratory in the MGH Department of Radiation Therapy describes how their technique led to the growth of long-lasting blood vessels without the need for genetic manipul...

...ructions for making the proteins. Proteins do the functional work in the cell and are much more complex than DNA. The roughly 30,000 human genes lead to more than three hundred thousand different proteins. The ability to rapidly and globally detect proteins represents the next step in biology. Revolutions i...

...r who wants to remain behind the wheel about their functional deficits that affect driving skills and to facilit...e an older adult has a chronic disease that causes functional impairments since it can have such negative consequences on older adults," said Dr. Owsley. "They ne...

...otos during a series of brain scans. The scans, or functional magnetic resonance images (fMRI), captured activity in the mothers' brains. While in the scanners, the mothers also rated their moods on a nine-point scale based on five feelings: happy, warm, loving, motherly and excited. The mothers, when seeing p...

...catalog of yeast genes and to predict a new set of functional elements thought to play a role in regulating genome activity. Experiments to validate the existence of these and other predicted elements, and study their function within the cell, are expected to enhance understanding of how the human genome works....

...e development of enhanced neuroprostheses that use functional electrical stimulation to restore standing and wal...s in the muscles of able-bodied individuals during functional electrical stimulation. There is also much interest in using electrical stimulation for the rehabili...

...occur in many enzymes, but never before had such a functional iron-sulfur complex been introduced into a protein as a result of laboratory evolution. James Penner-Hahn, a professor of chemistry and chair of the Biophysics Research Division at U-M, showed exactly what kind of iron-sulfur cluster was involved. ...

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